gistfile1.txt

openapi: 3.0.0
info:
  version: "{version}"
  title: Sample API with anyOf and oneOf
paths:
  /test:
    get:
      parameters: 
        - in: query
          name: afterDate
          schema:
            type: string
            format: date
            example: 2020-10-15
        - in: query
          name: afterDate2
          schema:
            type: string
            format: date-time
            example: 2021-01-01T15:53:09.703Z     
      responses:
        "200":
          description: ""